/Engine/Source/Runtime/MovieScene/Public/MovieScene.h
Adds a possessable to this movie scene.
Guid of the newly-added possessable.
[FGuid](API\Runtime\Core\Misc\FGuid) AddPossessable ( const [FString](API\Runtime\Core\Containers\FString) & Name, [UClass](API\Runtime\CoreUObject\UObject\UClass) * Class )